prevent my application from unauthorized mobile application

i want to protect my application from unauthorized mobile app developers. They are redirect their app to my application . how to protect those hackers. any suggestion please

You have to be a bit more specific.

Are they linking images to your server? In which case you could check out how to prevent hot linking

Or is it something else?

You have to be a bit more specific.

Are they linking images to your server? In which case you could check out how to prevent hot linking

Or is it something else?

this application only opened in any browser via mobile or computers using url. but this url cannot be opened in mobile app. some hackers doing redirect their page into this project. thats y.

The way I've done this before with an API was to look for a 'app-id' sent from the application... if it wasn't present the request was rejected.

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